Specification of William Clark
Subtitle: desiccating and preserving matters from decay
Publisher: Great Seal Patent Office
Published: 1863
Place of publication: London
Language: eng
Subjects: Zinc chloride; Drying; Medicinal Plants
Description: Patent for drying plants, wood, wool, cloth paper, corn, rooms (of damp - thereby preventing "cold or rheumatism") with chloride of zinc.
Notes: At head of title: A.D. 1863, 21st January. No. 186.

"William Clark, of 53, Chancery Lane, in the county of Middlesex, engineer and patent agent."